Burner for gas or oil



H. FORESTER.

BURNER FOR GAS 0B OIL.

APPLICATION men MAR. :2. 191a.

Patented Jan. 6, 1920.

Herb crt fbz'cster Q Mow/Mag WTTED STATES PATENT OFFICE.

HERBERT FGBESTER, 0F CLEVELAND, OHIO, ASSIGNOR OF ONE-HALF TO ALEXANDERM. SKIBINS'KY, 0F CLEVELAND, OHIO.

BURNER FOR GAS 0R OIL.

Specification of Letters Patent.

Patented Jan. 6, 1920.

Application filed March 12, 1918. Serial No. 222,022.

To all whom it may concern:

Be it known that I, HERBERT FORESTER, a subject of Great Britain,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and use ful Improvements in Burners for Gas or Uil,of which the following is a specification.

This invention relates to burners for stoves, furnaces, and the like,and has for its principal object to provide an eflicient burner, whichis adapted for using either gas or oil as fuel, so that when the gaspressure is low, oil may be used instead of the gas in the same burner.

F or a clear understanding of the invention, reference will be had-tothe accompanying drawings, which simply are intended to illustrate thesame, and the invention will be hereinafter fully described and thenovel features thereof particularly pointed out in the appended claims.

In the drawings corresponding parts are designated by similar charactersof reference.

Figure 1 is a longitudinal sectional view of a burner constructed inaccordance with my invention,

Fig. 2 is a plan view, with a part in section to better show theconstruction,

Fig. 3 is a front end view, and

Fig. 4 is a cross section taken on line 4--l of Fig. 1.

Referring to the drawings, 1 represents an elongated cylindrical casing,which termi nates in a round or other shaped head 2. The upper wall ofthe casing, near its open or inlet end 3, is provided with alongitudinal slot 1, and the head with suitable slots 5. Above thecasing 1 and over its slot 4 is arranged an elongated cylindrical gasgen erating chamber 6, which has a closed rear end 7. The gas generatingchamber 6 and the casing'l pass through and are supported in openings ina pair of plates 8 and 9. EX- tending from within the casing, near itsrear end, and along the underside thereof, is a tube 10, which isconstructed of comparatively thin material for becoming quickly heated.The rear or inner end 11 of said tube curves upwardly and is open, whilethe forward end 12 curves downwardly and is closed by a removable cap 13for permitting the insertion of a wire or the like for easily cleaningthe tube. The forward downwardly curved end 12 of the tube 10 isprovided with a nozzle 1% directly opposite the open or inlet end of thecasing. The forward end of the gas generating chamber 6 is closed by aplug 15, in which is threaded a feed pipe 16 leading from an elevatedsupply reservoir of kerosene or other liquid fuel. A. shut-off valve 17is arranged in the feed pipe 16 for controlling the flow of theliquidfuel to the gas generating chamber. For obtaining a steady and even flowor distribution of the liquid fuel as it enters and passes through thegas generating chamber 6, a core of suitable absorbent material, such asasbestos, is arranged therein as indicated by 18. When using ordinarygas, the longitudinal slot 4 of the casing 1 is closed, to shut off theflame from the gas generating chamber 6, by means of a slide 23, whichis rotatably mounted within the casing. Said slide is provided with alongitudinal opening 24, which is adapted to register with the slot 4c,when the slide is rotated in one direction, and not register with itwhen rotated in the other direction. For convenience in operating theslide 23, the same is provided with a laterally extending handle 25, andthis handle slid in a recess 26 cut in the end of the casing, theshoulders 27 of which serve as stops for limiting the movement of thtz1handle and therefore the rotation of the sli e.

In order to obtain complete and satisfactory combustion by usingordinary gas with the above described oil burner, it has been found inpractice that, the gas valve, indicated by 19, must be arranged with itsnoz- 21c 20 on an angle, with relation to the cylindrical casing l, fordirecting the flow of gas across the open or inlet end 3 of the casingand against the inner side thereof. The purpose of directing theordinary gas on an angle into the casing, is to obtain the propermixture, which is not the result when said gas is induced straight intothe casing, as there is too great a proportion of air due to thenecessarily larger air inlet opening for oil burning. The valve 19 isfixed to a gas supply pipe 21, and is provided with shut-off means 22.

Operation: One or more burners are arranged in a stove, heating furnace,or other placesin the usual manner, with the feed pipe 16 connected to asupply reservoir of liquid fuel, such as kerosene or other of theheavier oils, which reservoir is placed at a suitable elevationso thatthe liquid fuel will flow to the burner by gravity, and the pipe 21 isconnected to the ordinary gas supply pipe. 7 The slide 23 is rotated tobring its longitudinal opening 24; in registration with the slot 4 ofthe casing, and the gas turned on at 22. A light is applied to the gasescaping at the slots 4 and 5. The shut-off valve 17 is opened to admitthe oil to the gas generating chamber 6, and as soon as said chamberbecomes sufficiently heated, the oil is generated into gas and escapesat the nozzle 14. The gas valve 19 is now shut off and the gas generatedfrom oil'continues to burn. VVhe'n it is desired to use only theordinary gas, from the nozzle 20, the valve 17 is closed and the slide:23 rotated to close the slot 4 of the casing. In case there is no gas,the generating chamber 6 may be heated by a torch to start the burner.

From the above, it is seen that either ordinary gas or oil may be usedas fuel With this burner, and it is to be especially noted that thedirecting of the ordinary'gas across the open end of and against theinner side of the casing 1 is essential to the accomplishment of thebest results in a burner adapted for both oil and gas.

chamber, the tube having a nozzle opposite said opening of the casing,and a valve arranged laterally of said nozzle for-directing ordinary gasat an angle across the opening of the casing and against the inner sidethereof, substantially as described. v

2. In burner, the combination of a casing, the casing having aperforated Wall and an opening, a gas generating chamber, means forfeeding oil to thegas generating chamber, a tube leading from the gasgenerating chamber, the tube having a nozzle opposite said opening ofthe casing, means for supplying ordinary gas to the casing through saidopening, the casing having a slot opposite said gas generating chamber,a slide rotatably mounted in the casing, the slide having a longitudinalopening adapted to register with the slot of the easing, a handleextending from the slide, and the casing having a recess for the handlewhereby the movement of the slide will be limited, substantially asdescribed.

In testimony whereof I aflix my signature.

HERBERT FORESTER.

